Unit+2+要词+好句+精句讲义 高中英语牛津译林版（2020）选择性必修第三册.docx

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1、选必3 Unit2Reading: Life on a space stationLiving in space is every would-be astronauts dream. My six-month stay on a space station has come to an end, and it has been a challenging but magical adventure. I bet youd love to know what daily life is like up in space and how it differs from that on the E

2、arththe low gravity definitely makes ordinary things strange!1. would-be astronauts dream 准宇航员的梦想2. a challenging but magical adventure.充满挑战但神奇的冒险The strangeness of living in space is apparent from the moment we sleep.Due to the near absence of gravity in space, we have to attach ourselves so that w

3、e dont float around. We usually sleep in private quarters, which are more like large cupboards, or in sleeping bags attached to the walls or the ceiling. Its strange that we try to sleep with no pressure against our back, but the unusual beds dont bother us any more. After about eight hours of sleep

4、, we start our day of work.3. strangenessunusualness4. be apparent from 明显不同于5. Due to the near absence of gravity in space, we have to attach ourselves so that we dont float around.由于 太空中几乎没有重力，我们必须附着自己，这样我们就不会漂浮。The routine tasks that occupy most of the day are demanding, but they can also be extr

5、emely rewarding.Our main mission is to conduct scientific research. We need to evaluate the effects of low gravity on animals and plants. Creatures such as mice fish and mosquitoes have also been sent to the station! In a low-gravity environmentzwe can learn more about changes in cells and microorga

6、nisms under the microscope.As well as doing these biological experiments, we carry out experiments in other research fields. I have been working on one experiment which locates and tracks lightning over large regions of the Earth. Hopefully, it will cast new light on the Earths climate and lead to b

7、etter lightning protection. With so much going on the space station needs a lot of maintenance, so we constantly check support systems and do some cleaning.6. The routine tasks that occupy most of the day are demanding, but they can also be extremely rewarding.占 据一天中大部分时间的例行任务要求很高，但它们也可能非常有益7. evalu

8、ate-assess-estimate8. cast new light on投下新的光芒9. better lightning protection 更好的防雷保护10. maintenance-mending-fixtureThe most challenging work takes place when we need to perform tasks outside the space station such as testing new equipment, monitoring scientific experiments or repairing the space stat

9、ion. In the circumstances, its time for a spacewalk. First,we put on our spacesuits, which allow us to breathe in space and protect us from exposure to the cold and radiation. Then we head out, and sometimes perform tasks for hours at a time, with the beautiful Earth visible below. Splendid as the v

10、iew of the Earth is, spacewalking is not as exciting as you might think. Its probably the most dangerous work, with potential risks such as electric shocks. Thats why every spacewalk is carefully planned.11. Splendid as the view of the Earth is, spacewalking is not as exciting as you might think.尽管地

11、球的景色很 灿烂，但太空行走并不像你想象的那么令人兴奋。12. potential risks 潜在风险In view of the low-gravity environment, eating is also different in space. Most food is dried or freeze-dried.Its a luxury to eat fresh food, because fresh produce such as fruit and vegetables can only be delivered to the space station from the Ear

12、th every couple of months. Salt and pepper are only in liquid form, so that they will not float away and block the air pipes.However, liquids cant be easily controlled in space. We must drink water or any other liquids out of a bag through a thin tube of plastic. Furthermore, to keep our body health

13、y, we must ensure a balanced supply of nutrients by taking pills.13. freeze-dried 冻干的14. a luxury 奢侈品Spending sometime in the gym is of vital importance to astronauts health. Did you know that in just five months,astronauts could lose a significant amount of muscle and bone mass? Considering these n

14、egative effects low gravity has on the human body we discipline ourselves to do at least two hours of exercise every day. Exercise in space is not your average workout. We have to be tied onto specially designed exercise equipment to stop ourselves from floating around.15. be of vital importance 至关重

15、要16. lose a significant amount of muscle and bone mass 大量肌肉和骨量流失17. discipline ourselves 自律During our leisure time,theres nothing we like more than to sit back with the rest of the crew and watch our remarkable planet go by, taking pictures for our family and friends back home.As the space station t

16、ravels at a speed of about 17,500 miles per hour, we get to see the sunrise every 90 minutes. In these precious moments, all the challenges of life in space seem worth it.18. precious moments 珍贵的时刻Grammar UsageFor thousands of years, people have looked to the starry sky and wondered what, or who, is

17、 out there. In the early 1600s, Galileo was the first to use his telescope to explore the sky and since then, telescopes have continually improved.19. the starry sky 星空One major breakthrough came in 1990, when the Hubble Space Telescope was launched.That Hubble is based in space allows it to see fur

18、ther than ground-based telescopes,and it allows scientists to learn more about the universe. Hubble observations have played a crucial role in the discovery of the mysterious dark energj.Hubble was followed by the Kepler Space Telescope in 2009. Keplers Scientific goal is to search for Earth-size pl

19、anets orbiting other stars. Whether life on other planets does exist is yet to be proved, but the signs are promising: Kepler has detected many suitable planets that are almost the same size as the Earth.20. have played a crucial role发挥了至关重要的作用21. the mysterious dark energy 神秘的暗能量22. Whether life on

20、 other planets does exist is yet to be proved, but the signs are promising: Kepler has detected many suitable planets that are almost the same size as the Earth.其他行星上的生命是否确实存在还 有待证实，但迹象是有希望的：开普勒已经探测到许多合适的行星，它们的大小几乎与地球相同In recent years China has developed advanced telescopes as well. One example is t

21、he innovative FAST which is the largest single-dish radio telescope in the world. With a dish the size of 30 football fields, FAST is able to carry out observations with extraordinary sensitivity.One of its scientific goals is to detect communication signals between the stars in the universe.23. wit

22、h extraordinary sensitivity,具有非凡的敏感性It is clear that telescopes are crucial tools for space exploration and that developing the required technology will help astronomers all over the world make exciting discoveries.How much we will learn from the telescopes is merely limited by our imagination.24. H

23、ow much we will learn from the telescopes is merely limited by our imagination,我们能从望远镜中学到 多少东西，只是受到我们的想象力的限制。Extended Reading: Why we exploreIn 1969,when Neil Armstrong first landed on the Moon, many people thought that soon we would be regularly visiting other planets in our solar system and would

24、even dare to travel beyond it.This is clearly not the case. The reality is that space exploration is extremely difficult and dangerous, can take a very long time and costs a huge amount of money. Some people believe that while space exploration expands our understanding of the universe, it is a wast

25、e of the public purse and does nothing to enhance the quality of our lives here on the Earth. Why do we continue to explore space, then?25. Some people believe that while space exploration expands our understanding of the universe, it is a waste of the public purse and does nothing to enhance the qu

26、ality of our lives here on the Earth.有些人认为,虽然太 空探索扩大了我们对宇宙的理解，但它浪费了公共资金，对提高我们在地球上的生活质量没有任何帮助。It is in our nature to explore. From the very early days of human life on the Earth, our curiosity about the unknown has kept us adventuring into new places. We long to visit thick and wild forests, climb va

27、st mountain ranges, and cross deep oceans. We desire to explore the furthest frontier of all-space. As Stephen Hawking once said/Remember to look up at the stars and not down at your feet. Try to make sense of what you see and wonder about what makes the universe exist. Be curious.That we are fascin

28、ated by the sky is evident in ancient tales from around the world, such as that of Change. While space exploration is a reality, we remain curious about the mysteries of the universe. With each space mission comes greater insight,thus motivating us to continue along the same path of adventure.26. We

29、 long to visit thick and wild forests, climb vast mountain ranges, and cross deep oceans.我们渴望去茂密 的野生森林，攀登广阔的山脉，穿越深海。27. Remember to look up at the stars and not down at your feet. Try to make sense of what you see and wonder about what makes the universe exist. Be curious,记得抬头看星星，不要低头看脚。试着理解你所看 到的，并

30、想知道是什么让宇宙存在。保持好奇心。28. be fascinated by 着迷于The results of these space investigations have made major contributions to an understanding of the origin, evolution, and likely future of the universe, such as planets, stars,and all other forms of matter and energy. Exploring space helps address fundamenta

31、l questions about our place in the universe and the history of our solar system.lt is through our research into space that we have confirmed that the Earth is round and that it orbits the Sun. As we learn more about the universe, we may one day answer the question whether there is life on other plan

32、ets.29. Exploring space helps address fundamental questions about our place in the universe and the history of our solar system.lt is through our research into space that we have confirmed that the Earth is round and that it orbits the Sun,探索太空有助于解决有关我们在宇宙中的位置和太阳系历史的基本问题。正是通过我们对太 空的研究，我们确认地球是圆的，它绕太阳

33、公转。With technologies first researched and developed for space exploration, we can solve some of the big problems facing mankind, making our lives safer and easier One of these is earthquake shock absorbers. Shock absorbers originally applied to the space shuttle launch have also been set up in the c

34、ities with a high frequency of earthquakes in order to protect buildings and save lives. Some technologies need further research to better solve real-life problems. For example, liquid hydrogen is a clean alternative energy source that is used widely as rocket fuel, and it is likely that hydrogen fu

35、el cell vehicles will be mass-produced and launched in the near future.These scientific and technological advances can provide benefits to societies on the Earth in many areas including health, energy and information technology This should be a strong motive for continuing to explore space.30. with

36、a high frequency of earthquakes 地震频率高31. a clean alternative energy source 一种清洁的替代能源32. a strong motive 强烈的动机Although space exploration demands huge investment, the space industry can actually bringreat economic value. It has been calculated that the global space economy is increasing by billions of

37、 dollars every year. At the same time, space exploration can provide a variety of careerfar beyond the astronauts thatopportunities for young peoplejobs in the space industry receive widespread media coverage.There are many support staff on the ground, such as engineers mechanics and research assist

38、ants.33. Although space exploration demands huge investment, the space industry can actually bring great economic value.虽然太空探索需要巨额投资，但航天工业实际上可以带来巨大的经济价值。34. go far beyond 远超Moreover; the amazing work these people do can provide education and inspiration for the next generation. For me personally, th

39、is is by far the biggest reason for humanity to explore space. Such wonders as a space shuttle launch or astronauts walking on the Moon are incredibly exciting and inspiring to witness, and it can be these moments that shape childrens lives forever and motivate them to become the scientists and engi

40、neers of the future. It is this kind of inspiration that keeps our thirst for knowledge alive and ensures that advances in space exploration and many other fields will continue to be made. When you have seen a man walk on the Moon, you grow up believing that anything is possible!35. Such wonders as

41、a space shuttle launch or astronauts walking on the Moon are incredibly exciting and inspiring to witness, and it can be these moments that shape childrens lives forever and motivate them to become the scientists and engineers of the future.航天飞机发射或宇航员在月球上行走等奇迹令人难以置信 地令人兴奋和鼓舞人心，正是这些时刻永远塑造了儿童的生活，并激励他们成为未来的科学家和工程师。36. It is this kind of inspiration that keeps our thirst for knowledge alive and ensures that advances in space exploration and many other fields will continue to be made,正是这种灵感使我们对知识的渴望保持活力，并 确保太空探索和许多其他领域的进步将继续取得进展。